Head or stopper of siphons and the like.



J. DITTRIGH.

HEAD 0R STOPPER OF SIPHONS AND THE LIKE.

APPLICATION FILED JAN. 17, 1912.

Patented Oct. 15, 1912.

JULIUS DITTRICH, OF LONDON, ENGLAND.

HEAD OB, STOPPEB. OF SIPHONS AND THE LIKE.

Specification of Letters Patent.

Patented @ct. 15,1912.

Application filed January 17, 1912. Serial No. 671,665.

To all whom it may concern:

Be it known that I, JULIUs DITTRIOH, a subject of the Emperor of Germany, residing in the county of London, England, have invented Improvements Relating to the Heads or Stoppers of Siphons and the Like, of which the following is a specification.

This invention relates to that class of liquid container which with its closure preserves the contents out of contact with any metallic part of the closure being more especially directed to the porcelain glass or like material stopper or head of a siphon for aerated beverages.

As is well known one of the difiiculties eX- perienced in siphon or like stoppers or heads as aforesaid is that of preventing leakage and providing a construction or arrangement that is both mechanically eficient and easy to clean, while in the case of a removable stopper or head there is the further difficulty of securing a tight joint with the aid of material dissimilar in character to that of the container and stopper or head which shall elfectually resist the tendency of the container and stopper or head to become separated under the pressure of contained g The object of the invention is to overcome these disadvantages for which purpose the invention consists in the novel arrangements and combinations of parts hereinafter fully described and claimed.

In the accompanying drawings Figure 1 is a central vertical section of a siphon vessel having a head integral therewith, Fig. 2 is a similar view of a removable head or stopper. Fig. 3 is a cross section and Fig. A a side elevation partly in section of the stopper of Fig. 2. Figs. 5 and 6 are cross sectional views illustrative of modifications.

In the drawings the head 5 of the siphon vessel a is shouldered at c to correspond with a shouldered liner d of ebonite or the like that is adapted to be inserted longitudinally in a recess extending through the top of the head. Preferably an india rubber washer e is placed upon the shouldered part of the liner d while the upper end of the latter serves as one seat for a leakage preventing washer f. The other seat for the washer f is constituted by the lower end of a metal fitting g the upper end whereof is acted upon by a threaded plug it of ebonite or the like screwed into a companion threaded portion of the recess in the head I), the arrangement being such that both washers e and f are securely clamped in position. The liner (Z is provided wit-h a seat 2' with which cooperates a valve j of india rubber or the like carried by a block is of ebonite or equivalent. The said block 70 may be screwed upon a metal plunger m that is shouldered at m and has a forked head 0 with a cross pin 39. The washer f is engaged by the plunger m and its shoulder so that when the valve j is closed the washer which is normally fiat assumes somewhat the shape shown. As however the valve is opened the washer gradually returns to its fiat condition and is finally deformed in the opposite direction so as to be tightly engaged by chamfered edges r and 8 formed respectively upon the fitting g and block is. In this way a most secure joint against leakage is obtained. The head 0 of the plunger m is acted upon by a spring t to keep the valve j closed and the valve is opened against the action of the spring by a lever n which rides upon a knife edge '21 of the fitting g forming a fulcrum therefor. The inner end of the lever 72 is hooked and engages the pin 7). The usual tube 10 is carried by the liner d and removable therewith, the said liner having an aperture 00 communicating with the outlet passage y in the head Z). The bore at z in the liner (Z is less in area than that of the passage y so as to reduce the velocity of outflow from the latter.

The valve j in the removable stopper shown in Fig. 2 and about to be described, is illustrated in mid-position from which it is obvious that when completely retracted a full way for charging purposes is presented if, as is necessary in the case of Fig. l the charging be done through the passage y. The said Fig. 2 illustrates the invention applied to a removable screw head or stopper, the liner (Z being dispensed with although it is to be understood that it may be employed if so desired in the same way as it may be omitted in the siphon head of Fig. 1. As shown, the screw comprises two parts 1, 2 disposed upon a part 3 of the stopper Z) that is sufficiently reduced in cross sectional area as to provide a substantial collar l resisting shear. These parts 1, 2 are separated one from another by a pair of longitudinal ribs 5, 6 that prevent their rotation the parts being held together in the act of screwing the stopper into the vessel by an india rubber or like ring 7 that serves also as a washer for preventing leakage. The mode in which this washer holds together the parts 1 and 2 will be better understood from Fig. 4.

In Fig. 5 a single rib 5 is employed to separate at one point two such parts as 1 and 2. In Fig. 6 the cross sectional shape of the part 3 and of the parts 1 and 2 is such as to resist the relative rotation there.- between. In all cases it will be appreciated that the parts can be readily separated to enable cleaning to be effectually performed, there being no permanent joints in which dirt can accumulate.

What I claim is 1. In a siphon head, the combination of a valve-operating plunger, a flexible washer mounted on said plunger, a seat for the lower side or" the peripheral margin of the washer, a hollow fitting adapted to hold the peripheral margin of the washer on said seat and having a chamfered inner edge, a valve, a block carrying said valve and attached to the plunger below the washer, said block having a chamfered upper edge adapted to engage the lower surface of the washer when the valve is opened and compress the washer between the chamfered edges of the block and fitting without shear.

2. In a siphon head, the combination of a valve, a valve-operating plunger, a flexible washer carried by said plunger, means for engaging the peripheral margin of the washer to hold the same in a fixed position in the siphon head, and means carried by the plunger adapted to flex the washer in one direction when the valve is closed and in the opposite direction when the valve is opened.

3. In a stopper, a hollow head having a tail piece reduced in cross sectional area to provide a substantial collar resistings'hear, separable screw parts surrounding said portion of reduced cross sectional area, means resisting relative movement between the head and screw parts with rotative effort in screwing and unscrewing directions, and a resilient ring adapted to hold the screw parts together and act as a leakage preventing washer.

4:. In a siphon head, the combination of a valve, a valve-operating plunger, a vflexible washer carried by said plunger, means engaging the peripheral margin of the washer to hold the same in a fixed position in the siphon head comprising a scatter the lower marginal edge of the washer and a removable cylindrical fitting adapted to hold the washer on its seat and having a chamfered. inner edge, means carried by theplunger adapted to flex the washer downwardly when the valve is closed, and means carried by the plunger adapted to flex the washer upwardly when the valve is opened and com; press the washer against the chamfered edge of the fitting.

Signed at London, England, this sixth day of January, 1912.

JULIUS DITTRIGH, Witnesses P. HOFELS, O. J. 'VVORTH.

Copies of this patent may be obtained for five cents each, by addressing the .(lommissioner of latents. 7

Washington, D. C. r I 

